1Clinical application of umbilical artery blood gas analysisJIN Jin, WANG Zhi-jian376-3802Assessment of fetal reserve in the perinatal periodLIU Ming, DUAN Tao380-3833Intrapartum management of category Ⅱ fetal heart rate tracingsLUO Yi-hong, LIU Hui-shu383-3874Fetal monitoring during twin pregnancyLIU Xing, CAO Yin-li387-3925Fetal arrhythmia: prenatal diagnosis and managementWEI Xing, SUN Lu-ming392-3966Evaluation of clinical application value of remote fetal heart monitoringZHANG Ke, HE Jing396-3987Reevaluation of the significance of fetal movement monitoringNAN Zi-qing, HU Ya-li399-4038Perinatal monitoring of fetal growth restrictionBI Shi-lei, ZHANG Li-zi, CHEN Dun-jin403-4079Clinical effects of clomiphene citrate combined with low molecular weight heparin calcium in the treatment of patients with polycystic ovary syndrome infertilityLIU Ye, FU Ting-ting, ZOU Cun-hua, CHENG Han-ying, GONG Xiu-zhen, ZHAO Shu-ping438-44110Effects of different controlled ovarian stimulation protocols on preimplantation genetic testing outcomes of chromosomal translocation carriersZHAO Shan-shan, TAN Ji-chun442-44511Analysis of 2 cases of fetal congenital omphalo-enteric fistula with intestinal prolapse diagnosed by prenatal ultrasonographyGU Qiu-yang, HUANG Li-yan, ZHONG Yan-qiu, CHEN Ling, WEI Ling-lin, CHEN Xiao-yu, GUO Bu-chao, LIU Xin-xiu446-44912Study on the effect of vaginal lavage with ozonated water on normal vaginal microecology and lactobacilliZHANG Qiong-qiong, LIU Ying, ZHANG Lei, CHEN Rui, TAO Zhi, HUANG Zhen-yu, LYU Tao, LIAO Qin-ping450-45413Kangfuyan capsule combined with antibiotics for pelvic inflammatory diseases: a Meta-analysisHUANG Li, WEI Shao-bin, LUO Mei, ZHANG Sai, LI Mao-ya455-46114Effects of Kuntai capsule on GnRH-a-induced perimenopause symptoms: a prospective randomized controlled studyDING Miao, WANG Liang-an, LI Yang-zhi, CHEN Dong-mei, LIAO De-hua, FANG Ling-ling, XIE Xiao-qian, XIE Mei-qing462-465